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  • an
    an
    indefinite article
    the form of a before an initial vowel sound (an arch; an honor ) and sometimes, especially in British English, before an initial unstressed syllable beginning with a silent or weakly pronounced h .
  • An
    An
    noun
    the Sumerian god of heaven: the counterpart of the Akkadian Anu.
  • AN
    AN
    abbreviation
  • an-
    an-
    a prefix occurring before stems beginning with a vowel or h in loanwords from Greek, where it means “not,” “without,” “lacking” (anarchy; anecdote ); used in the formation of compound words.
  • -an
    -an
    a suffix occurring originally in adjectives borrowed from Latin, formed from nouns denoting places (Roman; urban ) or persons (Augustan ), and now productively forming English adjectives by extension of the Latin pattern. Attached to geographic names, it denotes provenance or membership (American; Chicagoan; Tibetan ), the latter sense now extended to membership in social classes, religious denominations, etc., in adjectives formed from various kinds of noun bases (Episcopalian; pedestrian; Puritan; Republican ) and membership in zoological taxa (acanthocephalan; crustacean ). Attached to personal names, it has the additional senses “contemporary with” (Elizabethan; Jacobean ) or “proponent of ” (Hegelian; Freudian ) the person specified by the noun base. The suffix -an, and its variant -ian also occurs in a set of personal nouns, mainly loanwords from French, denoting one who engages in, practices, or works with the referent of the base noun (comedian; grammarian; historian; theologian ); this usage is especially productive with nouns ending in -ic (electrician; logician; technician ). See -ian for relative distribution with that suffix.
  • an.
    an.
    abbreviation
    in the year.
  • A.N.
    A.N.
    abbreviation
    Anglo-Norman.
Synonyms

an

1 American  
[uhn, an] / ən, æn /

indefinite article

  1. the form of a before an initial vowel sound (an arch; an honor ) and sometimes, especially in British English, before an initial unstressed syllable beginning with a silent or weakly pronounced h .

    an historian.


an 2 American  
[uhn, an] / ən, æn /
Also an',

conjunction

  1. Informal. and.

  2. Archaic. if.


An 3 American  
[ahn] / ɑn /

noun

  1. the Sumerian god of heaven: the counterpart of the Akkadian Anu.


An 4 American  
Symbol, Chemistry.
  1. actinon.


AN 5 American  
Or A.-N.

abbreviation

  1. Anglo-Norman.


an- 6 American  
  1. a prefix occurring before stems beginning with a vowel or h in loanwords from Greek, where it means “not,” “without,” “lacking” (anarchy; anecdote ); used in the formation of compound words.

    anelectric.


an- 7 American  
  1. variant of ad- before n: announce.


an- 8 American  
  1. variant of ana- before a vowel.

    anion.


-an 9 American  
  1. a suffix occurring originally in adjectives borrowed from Latin, formed from nouns denoting places (Roman; urban ) or persons (Augustan ), and now productively forming English adjectives by extension of the Latin pattern. Attached to geographic names, it denotes provenance or membership (American; Chicagoan; Tibetan ), the latter sense now extended to membership in social classes, religious denominations, etc., in adjectives formed from various kinds of noun bases (Episcopalian; pedestrian; Puritan; Republican ) and membership in zoological taxa (acanthocephalan; crustacean ). Attached to personal names, it has the additional senses “contemporary with” (Elizabethan; Jacobean ) or “proponent of ” (Hegelian; Freudian ) the person specified by the noun base. The suffix -an, and its variant -ian also occurs in a set of personal nouns, mainly loanwords from French, denoting one who engages in, practices, or works with the referent of the base noun (comedian; grammarian; historian; theologian ); this usage is especially productive with nouns ending in -ic (electrician; logician; technician ). See -ian for relative distribution with that suffix.


an. 10 American  

abbreviation

  1. in the year.


A.N. 11 American  

abbreviation

  1. Anglo-Norman.

  2. Associate in Nursing.


-an 1 British  

suffix

  1. (forming adjectives and nouns) belonging to or relating to; a person belonging to or coming from

    European

  2. (forming adjectives and nouns) typical of or resembling; a person typical of

    Elizabethan

  3. (forming adjectives and nouns) adhering to or following; an adherent of

    Christian

  4. (forming nouns) a person who specializes or is expert in

    dietitian

    phonetician

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

An 2 British  
/ ɑːn /

noun

  1. Babylonian counterpart: Anumyth the Sumerian sky god

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

An 3 British  

symbol

  1. actinon

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

AN 4 British  

abbreviation

  1. Anglo-Norman

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an 5 British  
/ æn, ən /

determiner

  1. a form of the indefinite article used before an initial vowel sound

    an old car

    an elf

    an honour

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an 6 British  
/ æn, ən /

conjunction

  1. (subordinating) an obsolete or dialect word for if See and

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an 7 British  

abbreviation

  1. Netherlands Antilles

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an- 8 British  

prefix

  1. not; without

    anaphrodisiac

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Grammar

See a 1.

Usage

An was formerly often used before words that begin with h and are unstressed on the first syllable: an hotel ; an historic meeting . Sometimes the initial h was not pronounced. This usage is now becoming obsolete

Etymology

Origin of an1

before 950; Middle English; Old English ān one in a weakened sense

Origin of an2

First recorded in 1125–75; Middle English, unstressed phonetic variant of and

Origin of an-6

< Greek. See a- 6, in- 3, un- 1

Origin of -an9

Middle English < Latin -ānus, -āna, -ānum; in some words replacing -ain, -en < Old French < Latin

Origin of an.10

From the Latin word annō

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

While Big Tech companies are driving the S&P 500’s profit growth to an abnormally high level this earnings season, energy companies are helping spur what could be the index’s highest sales growth in years.

From MarketWatch Aug. 9, 2026

There’s no subscription needed to view metrics, which made it an immediate threat to the membership-mandatory Oura ring and Whoop band.

From The Wall Street Journal Aug. 9, 2026

Half a lifetime ago, Hunt was a die-hard Chicago Bears fan working in residence with an improv group at a small, aging theater in Amsterdam when he got swept up in Dutch soccer culture.

From Los Angeles Times Aug. 9, 2026

He said the consumer-price index for July, due out Wednesday morning, could see an uptick since oil prices spiked during the second half of the month.

From MarketWatch Aug. 9, 2026

This is what an audience of doctors looks like when Phineas arrives in Boston in January 1850, tamping iron in hand.

From "Phineas Gage" by John Fleischman

An Allstate spokesman declined to comment on the case.

From The Wall Street Journal Aug. 9, 2026

An immune molecule that appeared in evolution long before blood circulation may help improve cancer immunotherapy.

From Science Daily Aug. 8, 2026

An international academic conference on Tibet due to take place in Nepal this month has been pushed online, organisers said Saturday, calling it a "worrying development".

From Barron's Aug. 8, 2026

An extreme heat warning was in place for the high desert, with temperatures potentially reaching 112 degrees in the Antelope Valley and 120 in the Mojave Desert.

From Los Angeles Times Aug. 8, 2026

An old horsethief from just over in Putnam County died and went down to Hades.

From "The Teacher’s Funeral" by Richard Peck

Rajeev Kamal Kumar, an anthropologist at Patna's AN Sinha Institute of Social Sciences, who worked on a government study of prohibition, says both sides of the story are true.

From BBC Nov. 18, 2025

AutoNation AN -1.03%decrease; red down pointing triangle recorded higher third-quarter profit and sales as the company saw growth across all of its major categories, including new vehicles.

From The Wall Street Journal Oct. 23, 2025

HIS DAD, AN ecologist and amateur photographer, instilled in his son the importance of pictures in engaging people in conservation.

From Seattle Times Dec. 1, 2023

I have no idea if the figures in SBF’s Substack post are accurate; SBF himself labels them as “JUST AN ESTIMATE.”

From Slate Jan. 13, 2023

They screamed up at the bleachers: “GIMME AN E!”

From "Stargirl" by Jerry Spinelli

I just - I do have to say it’s an- it’s an absolutely great novel, and he was a great writer.

From Scientific American Apr. 20, 2023

For too many parents and their children, getting into a highly selective school isn’t just another challenge, just an- other goal.

From MSNBC Mar. 21, 2015

Brooks arrived at the restaurant along with Valerie Jamieson, an- other physics editor from New Scientist, who introduced herself with a melodic Scottish brogue.

From Scientific American Jan. 31, 2014

From top, the band Yuck was among those that appeared on the tour; Stephen Pope of Wavves, appropriately named, an- other cruise group; Lou Barlow, leaning back, playing with Sebadoh.

From New York Times Mar. 30, 2012

It’s too early for a school dance—the sun is barely setting over the mountains, its rays still long and an- gled through the windows.

From "The Queen of Water" by Laura Resau

That was what they sang for the next few months as they wound through college campuses and through the bus route from Saket -an old protestor's chant about azaadi, freedom.

From BBC Dec. 14, 2013

That became even more of a certainty last week when the Swedish Academy bestowed on him the 1964 Nobel Prize for Literature -an honor he didn't want.

From Time Magazine Archive

They bemoaned "a blood bath with no military objective" -an accusation belied, not only by the British photographs of the industrial damage but also by Commandant Fontaine's eyewitness account of it.

From Time Magazine Archive

Dumas once summed up his own significance: "I carry with me wherever I go - I don't know how it is, but it is so -an atmosphere of life and stir which has become proverbial."

From Time Magazine Archive

‘In the end,’ he whispered, ‘he summons -an elemental.’

From "Wolf Brother" by Michelle Paver

The result was published in an. edition of 300,000 copies in England last month.

From Time Magazine Archive

Although he is an effusive greeter, a vigorous handshaker and an. expert at the Indiana political massage,* he has a tendency toward bluntness.

From Time Magazine Archive

With the Symphony for the last two springs "Doc" Davison's singers have given Bach's great B Minor Mass. With the Vassar Glee Club in Poughkeepsie this spring they made an. evening of Brahms's German Requiem.

From Time Magazine Archive

Brother Percy has the sage counsel of Brother Jesse Isidor, who returned to the U. S. for an. operation last month.

From Time Magazine Archive

F, nearly ripe sporangium, × 50: i, from in front; ii, from the side. an. ring. st. point of opening.

From Elements of Structural and Systematic Botany For High Schools and Elementary College Courses by Campbell, Douglas Houghton

I put the turning point in the spring of 2009, when A.N.

From The Wall Street Journal Oct. 17, 2025

A couple of decades later, Gottlob Frege with his "Begriffsshrift" and then Bertrand Russell and A.N.

From Salon Jul. 29, 2024

In his decades since scouting, A.N. says he’s experienced severe emotional trauma, including “shame, humiliation and loss of enjoyment of life.”

From Seattle Times Feb. 18, 2020

Even the endorsements on the book’s jacket second this impression: To A.N.

From Washington Post Apr. 18, 2017

“But that was A.N. And I never liked it half as much as I like it with you.”

From "Out of Darkness" by Ashley Hope Pérez

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